Thread holder



Jan. 14, 1958 M. KOZLEVCAR 2,819,353

THREAD HOLDER Filed April 25, 1955 INVENTOR. m5? .5 QZJZ V (1Z1? UnitedStates Patent THREAD HOLDER Mary Kozlevcar, Cleveland, Ohio ApplicationApril 25, 1955, Serial No. 503,687

1 Claim. (Cl. 242-1252) This invention relates to caps for threadspools.

It is an object of the present invention to provide caps for threadspools which prevent thread from becoming unraveled from the spool.

It is another object of the present invention to provide a deformable,pressure-sensitive plastic cap which may be readily pressed onto the topof the spool and retained thereon in live engagement, the cap holdingthe free end of the thread between the spool and the cap.

It is still another object of the present invention to provide apressure-sensitive, deformable cap for thread spools of the abovecharacteristics which is formed of polyvinyl plastic or polyethyleneplastic or other substance having similar physical characteristics whichdue to its elasticity will firmly grip the end of the spool and to holdthe same until forcibly removed therefrom.

Other objects of the invention are to provide a cap for thread spoolswhich is of simple construction, has a minimum number of parts, isinexpensive to manufacture and efiicient in operation.

For other objects and a better understanding of the invention, referencemay be had to the following detailed description taken in connectionwith the accompanying drawing, in which:

Figure 1 is a perspective view of a preferred embodiment of the presentinvention shown alone;

Fig. 2 is a perspective view of a conventional spool of thread;

Fig. 3 is a perspective view showing the invention in operative use onthe spool of Fig. 2; and

Fig. 4 is a fragmentary vertical sectional view thereof taken along theline 4-4 of Fig. 3.

Referring now more in detail to the drawing 13 represents a conventionalwooden spool having the thread 14 wound therearound and being providedwith the central bore 15 which receives therewithin a spindle or thelike, in the well known manner.

In the practice of my invention, a plastic cap including a circular topwall and an integrally formed depending cylindrical skirt 10a isprovided with a central opening 11 adapted to be aligned with the boreof the spool. The cap is preferably formed of polyvinyl or polyethyleneplastic or other substance having similar characteristics with theinside depending skirt 10a slightly less than the diameter of the spoolin live engagement therewith due to the deformable, pressure-sensitivenature of the material employed.

2,819,853 Patented Jan. 14, 1958 The outer surface of the skirt 10a isintegrally formed with the peripheral beads or ridges 12 verticallyspaced apart and which increase the sealing characteristics of the skirtby resisting expansion.

As shown in Fig. 4, the inside of the skirt 10a near the lower edgethereof is outwardly flared, as at 16, so as to permit the easy andready insertion of the cap and removal thereof from the enlarged ends ofthe spool. As the cap is pushed onto the spool, the skirt portion 10athereof will expand slightly due to its elasticity to grip the end ofthe spool firmly. When the cap is fully pushed onto the spool afterfirst passing the free end of the thread 14 across the upper endthereof, the cap will hold the thread securely and prevent it fromunraveling. The opening 11 is provided as to receive therethrough thepin or spindle which rotatably mounts the spool.

Although three vertically spaced beads or grooves 12 have been shown, itwill be readily apparent that any number may be employed.

It should now be apparent that there has been provided a cap forthreaded spools which is adapted to be removably mounted thereon toprevent the thread from unraveling and which is secured to the spool insuch a manner that the spool may be mixed with other spools in a draweror the like without danger of the threads of various spools becomingentangled and wasted. The beads or ridges 12 in the skirt 10a act toyieldably engage the skirt with the adjacent end of a spool to thusfrictionally hold the free end of the thread thereon and to prevent thesame from unwinding.

While various changes may be made in the detail construction, it shallbe understood that such changes shall be within the spirit and scope ofthe present invention as defined by the appended claim.

What I claim as new and desire to protect by Letters Patent of theUnited States is:

The combination with-a thread spool having enlarged portions at each endthereof, of a deformable, pressure sensitive cap adapted to be pressfitted onto one end of the spool whereby to engage the free end of thethread between the end of the spool and said cap, said cap comprising asubstantially circular top wall integrally formed with a dependinghollow, cylindrical skirt having an inside diameter slightly less thanthat of the enlarged end of the spool, said top wall being provided witha central opening aligned with the longitudinal bore of the spool, saidtop wall and skirt being formed of deformable, elastic, plasticmaterial, said skirt on the outer face thereof being integrally formedwith a plurality of vertically spaced peripheral ridges whereby toincrease the contractual properties of said skirt when in engagementwith the enlarged end of the spool.

References Cited in the file of this patent UNITED STATES PATENTS885,517 Prescott Apr. 21, 1908 1,648,437 Anderson Nov. 8, 1927 1,783,339Mitchell Dec. 2, 1930

